kashif

here is updated efi to 0.6.1 just remove io80211family.kext if its not working EFI.zip

I used it but somethings was still wrong in that it wasn't able to boot big sur

@Jake Lo i fixed it it was wifi kext that was stoping big sur from booting up .

@Jake Lo this efi is working fine ethernet wifi touchpad and keyboard is working . everything over all is working however the problem is that it works perfectly well with catalina but can not boot big sur installer EFI.zip

ok i am doing it will let you know

Did that but no effect stucks at apple logo and reboots

@Jake Lo Stuck at Apple logo

@Jake Lo i replaced the kext and acpi folder with the ones you gave however after replacing system gets stuck at apple logo and then restarts . i even tried adding only the contents of acpi and kexts folders that you gave into already existent folder but no luck

@Jake Lo @Hervé i wonder if you can look at it

Kashif’s MacBook Pro.ioreg EFI.rar

@Hervé i have installed big sur using the efi however i am getting some problems my etherner, touchpad and keyboard is not working and the wifi as well i am using atheros 9285 for wifi and screen randomly turns black

anyone has open core efi folder for dell 6440